Lid for a storage box



FIG. 1 is a front, left perspective view of a lid for a storage box showing my new design;

FIG. 2 is a bottom, left perspective view thereof;

FIG. 3 is a rear elevational view thereof, the front elevational view thereof being identical thereto;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a lid for a storage box, as shown and described. 